Seal for a joint or juncture – Seal for well apparatus – For below ground apparatus
Patent
1996-07-08
1999-12-21
Knight, Anthony
Seal for a joint or juncture
Seal for well apparatus
For below ground apparatus
277589, 277936, 277938, 277944, F16J 1554
Patent
active
RE0364525
ABSTRACT:
An elastomeric o-ring rock bit seal is disclosed with two or more integrally bonded elastomers or phenolic type materials joined together to form the seal. The dynamic sealing face adjacent the journal bearing is fabricated from an elastomer/phenolic engineered specifically for wear resistance The bulk of the seal adjacent the static seal retention cavity typically formed in the rotary cone is molded from an elastomer engineered specifically for precise control of the seal contact force adjacent the dynamic seal face when the seal is compressed against the dynamic face by the seal retention cavity in the cone.
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Chambers Robert
Hooper Michael E.
Johnston Randy
Portwood Gary
Pyka Jerry
Beres John L.
Knight Anthony
Smith International Inc.
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